As an average earthling, you have a 1/3200 chance of being hit by space debris tomorrow. Good luck. http://t.co/oKABpCS6

who wants to go outside and see if we can't get hit by a satellite? Should be fun and if it misses, hey, free satellite parts

The remains of a piece of space junk the size of a truck are due to hit Earth sometime early on Saturday. NASA isn’t sure where they will land, but says the satellite pieces won’t hit the United States. As bookies took bets on where debris from the Upper Atmosphere Research Satellite would be scattered, NASA caused a bit of a stir when it announced that the chances of someone getting injured by a piece of the 35-foot, six-tonne vehicle were around 3,200 to 1.

NASA updates on the satellite landing said things were slowing down, with current predictions that debris will hit the planet somewhere late on Friday or early Saturday. It still looked like good news for Americans who were unlikely to be hit:

There is a low probability any debris that survives re-entry will land in the United States, but the possibility cannot be discounted because of this changing rate of descent. It is still too early to predict the time and location of re-entry with any certainty, but predictions will become more refined in the next 12 to 18 hours.

NASA was forced to clarify that the odds of 3,200/1 applied to anyone, at all, anywhere, getting hit by satellite debris from UARS. The Guardian reassured readers with this correction:

Nasa has said that the chance of anyone at all being injured by the debris is one in 3,200, making the likelihood of any particular individual being hit probably around one in 20 trillion, many times less than the chances of winning the lottery or being eaten by a shark.